Spring wheel for vehicles



'1. WATSON.-

SPRING WHEEL FOR VEHICLES. APPLICATION FILED NOV. 10, 1921.

1,414,003. ate ted Apr. 25, 1922.

Fig. 1. H F A A G r 1 F F P 111 C C G ,I' I. /d B I '1 JAMES VIATSON, or NOTTINGHAM, nnenann,

. SEEING WHEEL Fort VEHICLES. 1

.Specificationof Letters Patent. P t t d A 25,1 22,

' Application filed November 10,1921. S erial1\To.514',187.

T 0 all whom it may concern:

Be it known that I, NAMES vi/Arson, a

subject of the King ofGreat Britain, re-

siding at 94 Mansfield Road, in the city and county of Nottingham, in England, have invented certain new and useful Improve ments in Spring vVheelsfor Vehicles, of which thefollo-wing isa specification.

This invention relates to improvements in spring wheels for vehicles, of the kind in which a flexible elastic felloe or rim is connected to a concentric rigid rim of less diameter, by tensional connections suchas flexible cables which will permit of the elastic rim approaching the rigid rim, but prevent at each of the points of attachment, any appreciable movement in the reverse direction. The present invention refers more particularly to the system employed for connecting the flexible cable to the elasticand rigid rim.

According to the present invention, the flexible cable or cables are connected to the respective rims by means of clips which are adapted to clamp and lock the cables at each point of attachment, and the latter are especially disposed with a View to taking the driving and braking as well as the lateral stresses, thus permitting of little or no appreciable movement of the elastic rim in either the rotational or-lateral directions relatively to the rigid rim, Without afiect ing the flexibility of the former in its function of yielding to and absorbing shocks.

In the accompanying drawings. I

Fig. 1. is a side elevation showing a portion of a wheel construction according to my invention.

Fig. 2. is a diagram showing one arrangement of the wire cable connections. v

Fig. 3. is a diagram showing an alternative arrangement of the wire cable connections.

Fig. 4. is a diagram showing a further alternative arrangement of the cableconnections.

Like letters indicate like parts throughout the drawings.

In the construction shown in Figs. '1 and 2, the outer elastic rim A is secured to a rigid rim B of less diameter, by a pair of stranded wire cables C, which are carried from one rim A to the other B in a zig-zag manner as shown, and permanently secured to the respective rims at each point. The ends of the cables C may be secured together or to either of'the rims, and although both are or may be practically continuous all round the wheel, they form a series offindependent cable connections between t'he rims A and B. The disposition of the cable connections as describedetl'ectually staysthe elastic rim' A against the driving andbrakmg stresses. Y

The cables C may be continuous cables, or-

short lengths joined together in any ap proved way. The cables C have circumferentially arranged portions which are rim B near its side-edges at predetermined dially arranged bolts G clamped against the periphery of the inner also circumferentially arranged portions.

which are clamped against the periphery of the outer mm A at its middle part, and intermedlate of the clip lates G, by means of clip plates F and radlal bolts'F The in-' tervening portions of the cables C between the clip plates'F and G extend in zig-zag form between the clip plates F and G alternately, and they are preferably arranged to cross each other bolts F 7 In the form of the wheel shown in Fig. 2, two independent cables are provided, and each cable extendsv from the clip plates G at points adjacent to the.

near one edge of the rim to the clip plates F at points beyond the bolts F The cables C have curved loops arranged circumferentiallyl of the'bolts F under the clips F, so that each bolt is midway between two of the loops.

In the form of the wheels shown in Figs.

3 and 4, only onecable is provided on each wheel, andeach cable iswound into a series of relatively large loops, each of which has a single stretch clipped at one side of the inner rim, and twostretches ora pair of stretches clipped at the other side of the inner rim.

In Fig. '3 the stretches of each pair of stretches cross each other under the 1 clip plate which secures them to the'inner rim. The clip plates G are secured to the inner rim by radial boltsG The clip plates rand G as shown are oblong in form, but may be of other approved form, and they are preferably'curved to correspond with the curvature of the rims to which they are se cured. The cables shown in Figs. 3and 4 have, a

the ends of their large loops, sharply curved portions or loops which extend circumferen--- tially of the radial clip bolts in a similar manner to the sharply curved portions or 100p: or" cables shown in Fig. :2, but the sharply curred portions or loops shown in Figs 3 and 4 are arranged in positions crosswise of the positions of the corresponding parts shown in Fig. 2. v I

The outer rim A has atire H of elasticni'aterial, but this tire may be omitted.

VVhatl claim is 1. In a spring wheel, an outer rim provided with radial clip bolts and clip plates, an inner rim provided with radial bolts and clip plates arranged alternately and out of line with the bolts and clips of the outer rim, and flexible connections having loops secured against the middle part of the outer rim by the clip plates and bolts pertaining to it and arnei' rim by the clip plates and bolts pertaining to it, and having also intervening portlons which extend 1n zigzag form between the clip plates of the inner andouter rims.

2. A spring wheel as set forth in claim 1, in which two separate flexible connections are provided and arranged one'on each side portion of the wheel.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

JAMES WATSON. V l Vitnesses e H. C. SHELD N, L. A. SHELD N. 

